Blind carbon copy (Bcc) information can be seen in embedded e-mail in Exchange Server 5.5 or in Exchange Server 2003

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Article ID: 821595 - View products that this article applies to.
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SYMPTOMS

When you use Microsoft Outlook to create and send an e-mail message that has an embedded e-mail message in the message body, when the receiver of your e-mail opens the embedded e-mail message, addresses that are in the Blind Carbon Copy (Bcc) field can be seen by the recipient.

CAUSE

This problem occurs because the mailbox for both you and the receiver of the e-mail message are located on the same Exchange Server computer.

RESOLUTION

Exchange Server 2003

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Exchange Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
836993 How to obtain the latest service packs for Exchange Server 2003

Exchange Server 5.5

Hotfix information

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to systems that are experiencing this specific problem.

To resolve this problem immediately, download the fix by clicking the download link later in this article or contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Component: Store

The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time    Version     Size     File name    
   ----------------------------------------------------------------
   12-Jun-2003  05:29  5.5.2657.47       491,280  Mdbmsg.dll
   12-Jun-2003  05:29  5.5.2657.47     2,630,928  Store.exe
                                             
Note Because of file dependencies, this hotfix requires Exchange Server 5.5 Service Pack 4.

MORE INFORMATION

This problem occurs, for example, under the following scenario:
  1. In Outlook, you create an e-mail message addressed to User3 in the To field and addressed to User4 in the Bcc field, and then send the e-mail message.
  2. You create another e-mail message addressed to User2, who has a mailbox on the same Exchange Server computer as your mailbox.
  3. You drag the e-mail that you sent in step 1 from the Sent Items folder to the body of the e-mail message that is addressed to User2, and the embedded e-mail message appears as an envelope icon in the body of the e-mail message that is addressed to User2.
  4. You send the e-mail message to User2.
  5. In Outlook, User2 opens the message, and then double-clicks the envelope icon in the message body to open the attached message.
User2 can see the Bcc information in the embedded e-mail, even though you expect the Bcc information not to be visible.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
This problem was first corrected in Microsoft Exchange Server 2003 Service Pack 2.

Properties

Article ID: 821595 - Last Review: October 25, 2007 - Revision: 2.2
APPLIES TO
  • Microsoft Exchange Server 5.5 Standard Edition
  • Microsoft Exchange Server 2003 Standard Edition
  • Microsoft Exchange Server 2003 Enterprise Edition
Keywords: 
kbhotfixserver kbexchange550presp5fix kbfix kbbug kbqfe KB821595

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